A deal to limit Iran’s nuclear program would lead to sanctions on its oil sector being lifted but it could take several months for any more Iranian crude to flow, and even then it may only offer short-term respite to tight oil markets, analysts said. Oil soared this week to almost $120 a barrel for the first time in a decade as the West slapped sanctions on Russia over Ukraine, before hopes that a deal with Iran could be announced within days knocked crude from its highs. The nuclear talks appeared to near a climax on Friday with talk of an imminent ministerial meeting. read more But even if a deal were struck next week, it could take several months […]